Container and a closure

ABSTRACT

Device for a package closure comprising a cap ( 1 ) which is mounted on a package neck ( 2 ) alternative on a separately neck and where the cap in its final mounting position gives a sealing function implying that a sealing lip ( 10 ) of the neck will be pressed against an outer wall ( 32 ) of the cap, alternative that there is a further sealing lip  51  of the neck which presses against an opposite cylindrical section ( 33 ) of the cap ( 1 ) and that the complete package in this sealing position has a secured tightness and that the construction is designed in a way that a closure is obtained which gives conditions for a sterile environment in the package.

Present invention relates to a package closure according to the typementioned in the preamble to claim 1.

The invention is preferably applied to flexible packages of the typemilk, juice or yoghurt packages, but can naturally also be used on rigidand/or shape stable packages.

Present packages, provided with caps/closures of known technique, have anumber of disadvantages which are eliminated by the present inventionand the main advantages of this invention are:

-   -   a cost-efficient manufacturing technique.    -   low product cost while the present quality requirement are        fulfilled.    -   simple opening procedure of the package.    -   no “throw away” part when the package is opened.    -   improved keeping qualities of the enclosed medium, because fresh        oxygen cannot flow into the package after finished        emptying/tapping off.

These above mentioned advantages with the new construction are realizedaccording to the invention by that the construction according to thetype stated in the preamble is primarily realized in a way that isstated in the characteristic part of claim 1.

Additional characteristics and advantages of the invention is evidentfrom the following description with reference to the accompanyingdrawings showing a preferred, but not limiting embodiment of a packageclosure, realized with a cap and a package neck. In the description theinvention is mounted in constructions that only are an example of anembodiment of forms of execution of the invention.

The primary part of the invention is the design of the sealing partsbetween cap and package neck and that those parts always can besterilized after that they are assembled, or even in that case when theneck of the package constitute a continuous, or by manufacturing of apart belonging to the package in the complete package itself, and thatthe package tighten and also prevents air from penetrating into thepackage in those cases when an over or under pressure would occur in thepackage.

In the now showed and described embodiment's represents in detail:

FIG. 1 a cap according to a first alternative embodiment

FIG. 2 a cap according to a second alternative embodiment

FIG. 3 a cap according to a third alternative embodiment

FIG. 4 a neck of a package according to a first alternative embodiment

FIG. 5 a neck of a package according to a second alternative embodiment

FIG. 6 a neck of a package according to a third alternative embodiment

FIG. 7 a cap according to the first alternative embodiment mounted on aneck of the package according to the first alternative embodiment

FIG. 8 a cap according to the third alternative embodiment mounted on aneck of the package according to the second alternative embodiment

FIG. 9 a cap according to the third alternative embodiment mounted on aneck of the package according to the third alternative embodiment

FIG. 10 a cap realized with an anti-tamper seal mounted on a neck of thepackage according to the third alternative embodiment.

FIG. 1 shows the cap 1 in a first embodiment, partly in an exteriorview—FIG. 1:1—and partly in a sectional view—view “a-a” in an enlargedscale in FIG. 1:2. The cap is preferably, independently of alternativeembodiments, manufactured in HD-polyeten. This applies also to the neck2, on which the cap is mounted. In general the cap 1 and the neck 2 arepreferably produced in a quality of material cooperating with thatpackage they connects and this because all material will be able to bereused in one and the same process. Naturally also other combinations ofmaterial may be used.

The cap in the different alternative embodiments has a number of newcharacteristics which are common and according to the following.

Thus, the cap has an exterior surface provided with grooves 21, partlyto improve the grip and partly to obtain shape stability with minimaloverall thickness of material or use of material in the cap. Theexterior surface preferably has a slightly growing diameter in ashoulder part 26 extending from a ring shaped upper plane 27 and fromwhich the vertical grooves 21 starts. The slightly growing diameterchanges over to a lower cylindrical part 22 constituting the terminationdownwards at the cap.

Internally the cap, in the first alternative embodiment, has in itsupper part, an inner ring section 24, which begins at the internal uppersurface of the cap. This ring section has an extension perpendicular tothe interior upper surface 28 which preferably is 1-3 mm. The ringsection 24 has an outer wall 32 whose diameter is selected to cooperatewith a sealing lip 10 provided on the neck 2. On the outer wall a groove49 is provided, which preferably constitute a segment of a circle with abow height of 0.1 mm or a V-groove or similar. This groove is located ina way that it cooperates with a sealing tip 48 of a sealing lip 10 atthe neck, when the cap is mounted on the neck.

Outside the upper surface 28—seen in radial direction—there is a plane30. The plane 30 is not horizontal but is inclined relative thehorizontal plane with approximately 5-45°, and preferably 15-30°, andwith its lowest point at an outer edge 29 of the plane 30, and this is aconstruction detail of the present invention, which, since the plane 30is inclined relative the horizontal plane, gives a reinforcement of thesealing function of the closure of the package. The sealing function islater in this description described more in detail.

The plane 30 and its outer edge 29 change over directly to an innersection 35 of a radius, with a radius cooperating with an outer part 8of the neck 2, in a way that when the cap is mounted on the neck, theinner section 35 of the radius encloses the upper, outer part 8 of theneck, which has a corresponding exterior rounded section 37. The section35 of the radius changes in the lower part over to an inner cylindricalsection 33 which in its prolongation extends downwards to that partwhich has its interior threaded part.

In the plane 30 there is also a recess 39 located on an approveddistance outwards from the interior corner 31 of the plane 30. Thisrecess is according to dimensions and position coordinated with a heel38—see FIG. 4:2—in the upper part of the neck 2, where this heel 38protrude over the upper plane36 of the neck.

These both parts, the recess 39 and the heel 38 gives the construction aincreased locking effect between the cap 1 and the neck 2, which meansthat those parts are radial coupled and accordingly their mutualposition are fixed and this also in those cases of operation when thecomplete package is subjected to variations in temperature and pressure.

The cap is realized with interior threads cooperating with threads onthe neck. These threads are not special for the present closure of apackage, and therefore they are not described in detail.

The cap has an inner locking edge 23 below and where this locking edgein its upper part has a horizontal plane 25, directed into the center ofthe package and when the cap is mounted on the neck 2 this plane 25snaps over an cooperating, exterior ring shaped plane 9 on the undersideof a swelling 11 located on the neck 2. To open the package an increasedopening moment will be needed and this owing to the cooperation whichoccurs between cap and neck and the cooperating planes 9 and 25. Whenthe cap is opened the cooperating planes 9 and 25 loses theirengagement. A common embodiment of a cap is that it is realized with ananti-tamper seal relative the neck. This alternative applies withadvantage also in this construction, but this is not described in moredetail in this application, since it is an embodiment which occurs inseveral packages and in several embodiments.

A second alternative embodiment of the cap 1 is evident from FIG. 2.

The difference between the cap according to the first alternativeembodiment=FIG. 1 and the second embodiment is that the plane 30 extendsas far as to the outer edge 29 where the plane change over to the innerring section 35. Thus the recess 39 in FIG. 1 is omitted. In additionthere is in this alternative construction no groove 49 in the ringsection 24 and its outer wall 32. This construction alternative of thecap will cooperate with a neck 2, according to a second alternativeembodiment, and has a design described in connection with FIG. 5.

A third alternative embodiment of the cap 1 is evident from FIG. 3.

The difference between the cap according to this alternative compared tothe alternative embodiments 1 and 2 is only that the plane 30, at theouter edge 29 of this plane, now changes over directly to thecylindrical section 33, which is directed downwards to the lowerthreaded part of the cap. Thus the cap according to this alternativeembodiment has no recess 39 or cylindrical section 35 of radius made orcarried out in the plane 30. This third alternative embodiment of thecap 1 will cooperate with a neck realized according to FIG. 6.

FIG. 4 shows the neck 2 in a first alternative embodiment, partly incross section view—FIG. 4:1 and partly in a view in detail—FIG. 4:2. Theneck according to this embodiment will cooperate with the cap accordingto the first alternative embodiment, the embodiment that is described inconnection with FIG. 1.

The neck 2 in this first embodiment preferably has a rotationalsymmetric design and its dimensions is natural coordinated with whichthat cap which it cooperate. In its lower part the neck has a thinwalled section, a skirt 6, which preferably is welded to the package, onwhich the neck has to be mounted.

In an alternative embodiment of the invention the neck is a part of thecomplete package, but in this description it is provided that the neckis a separate detail according to FIG. 4, FIG. 5 and according to FIG.6. Above the skirt section the neck has a more rigid cylindrical section5 which change over to the more or less merely cylindrical sectioncontaining the threaded part cooperating with the cap 1. On an approveddistance from the upper plane 36 of the neck there is the exterior plane9 underneath the swelling 11, and this plane 9 cooperates with the plane25 of the cap. This cooperation between the cap and the neck is the samefor all alternative embodiments of the cap and neck respectively. Thedesign of the upper part of the neck is unique and is that part which incooperation with the design of the cap guarantees the main sealingfunction of the package, when the cap is mounted on the neck.

At the top the neck, according to FIG. 4:2, has a cylindrical part 44which changes over to an exterior cylindrical part 8 that in itsdiameter is larger than the part 44 and where the part 8 is coordinatedwith the cap 1 and its outer section 35 of the radius. The outer part 8has outwards a section 37 of the radius which means that the cap and theneck will assume a cooperating position where those both sections of theradius will be situated close to each other.

The neck is upwards limited by a plane 36 which in its outer peripherychanges over to the section 37 of the radius. From the plane 36 a heelprotrudes upwards. The dimension of this heel and its radial position iscooperated with the cap and its recess 39.

From the plane 36 the sealing lip 10 is emanating, with a surface 40directed inwards to the center of the neck and down to the bottom of theneck in an angle of preferably 45° in relation to the horizontal plane.The surface 40 constitute the upper part of the surface of the sealinglip 10. The sealing lip has a length cooperating with the design of thecap, in a way that when the cap is mounted the sealing lip will be incontact with the outer wall 32 of the ring section 24 of the cap. Thepart 40 of the surface changes over to the lover part 46 of the surfaceslightly angled away, ca. 1-10° and preferably 5° downwards to thepackage, in relation to the part 46 of the surface. In the changeoverbetween the part 40 of the surface and the part 46 of the surface thereis a breaking edge 47, where the breaking edge has a nose or a swelling,alternative a sealing tip 48, which will give a improved sealingfunction of the complete sealing lip in relation to the cooperatinginner ring section 24 and its outer wall 32 of the cap.

To further improve the tightness preferably the ring section 24 and itsouter wall 32 has a design with a groove 49, which means that thebreaking edge 47 and its sealing tip 48, when the cap is mounted on theneck 2, will assume a position implying that the sealing tip 48 ispressed into this groove 49—see FIG. 7:2 and its view in detail.Accordingly the sealing tip will assume e position which implies that itis engaged with the groove 49 and that with a pressure, since the wholesealing lip 10 is forced away from its neutral position when the cap ismounted and has therefore an interior stress, which means that a sealingforce is provided and those parts of the force is taken up of thesealing tip in its contact with the groove 49 in the outer wall 32. Evenin those operating cases when the temperature and pressure levels varyin the package the sealing tip 48 will be positioned in its cooperatinggroove 49 and consequently a certain locking between the cap and theneck is obtained in this sealing point.

The lower part 46 of the surface of the lip 10 is in the final mountingposition also situated in direct contact with the outer wall 32. Thatthe lip 10 and the part 46 of the surface is inclined downwards to thepackage 7 and that a sealing force is provided followed by the bias ofthe lip 10 and its part 46 of the surface against the cooperating outerwall 32 of the cap, is of vital importance for a satisfactory sealingfunction. A tightness which is build up from even contact surfacesbetween the cooperating parts of the cap and the neck in the packagedoesn't give a satisfactory function in all operating positions.

The sealing lip 46 is relatively stiff and its lower or bottom side42—see FIG. 4:2—runs more or less in parallel with the surface 40 backupwards and changes over via a section 43 of the radius to the interiorinterface of the neck of the cylindrical part 44.

A second embodiment of the neck 2 is evident from FIG. 5. Thisalternative design preferably cooperate with the cap 1 according to thesecond embodiment=FIG. 2, but can also be used in combination with thecap according to the other alternative embodiments. In this secondalternative of embodiment the neck has in its lower part a mountingplate 50, which replaces the cylindrical part 5 and the skirt section 6which were included in the first alternative embodiment according toFIG. 4. Via the mounting plate 50 the neck is connected to a package byway of usual principles, for instance welding or gluing operations, whenit is about packages. On the same way as for the first embodiment theneck has, in this case, an exterior plane 9 underneath a swelling 11 andwhere this plane 9 is cooperating with the interior plane 25 of the cap1.

The design of the upper part of the neck 2 differs in this secondembodiment from the first embodiment according to the following.

According to FIG. 5:2 the neck has a cylindrical part 44 which on thetop changes over to an outer cylindrical part 8, whose diameter islarger than the part 44 and where the part 8 cooperates with the cap andits inner section 35 of the radius. The outer part 8 has outwards asection 37 of the radius which means that the cap and the neck will takeup a cooperating position, where those both sections of the radius willbe situated close to each other. In diameter and radius the part 44 andthe outer part 8 with its section 37 of the radius preferably are equalin the first and second alternative embodiment of the neck.

The neck is upwards limited of a plane 36, which in its otter peripherychanges over to the section 37 of the radius.

Starting from the plane 36 a, preferably horizontal, sealing lip 10extends, with a surface 40 directed into the center of the neck. Thesurface 40 constitute the upper part of the surface of the sealing lip10. The length of the sealing lip is coordinated with the design of thecap, in a way that when the cap is mounted—see FIG. 8—the sealing lipwill be situated in a clamped position and presses against the outerwall 32 of the ring section 24 of the cap 1. In this clamped positionthe sealing lip will be directed downwards to the package with an anglewhich is 15-65° in relation to the horizontal plane, and preferably withthe angle 30-45°.

The sealing lip is provided with a sealing tip 48, preferably situatedca. 0.1-1.0 mm from the outer end of the sealing lip and the sealing tipis situated slightly—ca. 0.1 mm—above the plane 36. At the interiorinterface of the cylindrical part 44 there is on the top a section 43 ofthe radius comprising a nearly 180° segment of a circle and where thesection of the radius changes over to a lower surface 42 of the sealinglip 10. When the sealing lip is subjected to a force down from in itsouter part, at the sealing tip 48, the sealing lip will yield downwardsand thereby be bent at the section 43 of the radius. The stiffness ofthe sealing lip varies according to the requirements which are set bythe present package, the range of application, and examples ofcontrolling parameters for the stiffness is the section 43 of the radiusand the size of this radius as well as the remaining material thicknessfrom the section of the radius up to the upper plan 36 of the sealinglip as well as the choice of material in the neck.

A third alternative embodiment of the neck 2 is evident from FIG. 6. InFIG. 6:1 the upper part of the neck is modified compared with thealternative embodiment 2 and according to the following:

In this third alternative embodiment the upper part of the neck isaltered in the way that to the foregoing alternative embodiment now alsoa second sealing lip 51 is introduced situated in the same upper planeas the sealing lip 10 but directed straight outwards from the center ofthe neck, i.e. in opposite direction towards the sealing lip 10. Thissealing lip 51 preferably has the same principal design as the sealinglip 10, but the design can of course vary within the scope of theinvention. In FIG. 6:1 the sealing lip 51 has a design with a sealingtip 52 in its outer end and with a more or less parallel underside 54 inrelation to the upper plane 36 and where this underside in its innerpart, with a section 53 of the radius, changes over to the downwardsdirected section 44.

By designing the neck 2 with sealing lips both outwards and inwards inrelation to the center of the neck, sealing element against the cap 1and its cooperating surfaces are created, which means that the captightens in those cases of operation when an overpressure as well as anunder pressure is established in the package.

By an overpressure in the packaging it is the sealing lip 10 thattightens against the inner section 24 of the ring of the cap and thisirrespective of which alternative embodiment of the neck 2 or the cap 1is available.

By an under pressure in the package the sealing lip 51 guarantees thatno air can flow into the package since the sealing lip 51 in this casewill be pressed more harder upwards and out against the interiorsurface, the cylindrical section 33 of the cap 1. This is illustrated inFIG. 9.

Additional examples of how the upper part of the neck 2 is designed andthis in the scoop of the invention is evident from FIG. 6:2 and FIG.6:3.

Those figures show examples of alternative forms of embodiments of theneck 2 and its upper part. In FIG. 6:2 the neck is provided with theradial outwards directed sealing lip 51, realized according to the abovedescription, while the sealing lip 10 is completely omitted.

In FIG. 6:3 the neck 2 has a combined sealing according to the formerdescriptions. Thus the neck in this alternative has a sealing lip 10designed according to the alternative embodiment 1 of the neck 2 and thesealing lip 10 is in this case combinated with the sealing lip 51according to FIG. 6:1 above.

FIG. 6:2 points out an alternative embodiment which is suitable in thosecases of operation when the demands for function only require a limitedsealing effect.

FIG. 6:3 is in function equivalent with the embodiment according to FIG.6:1.

In order to further clarify the invention different combinations isshowed in FIG. 7-9 of the different variations of embodiments of cap andneck respectively.

FIG. 7 shows a lateral view—FIG. 7:1—and a sectional view—FIG. 7:2—andalso an enlarged view of the cap in engagement with the upper part ofthe neck—according to the first alternative embodiment of the cap 1mounted on the neck 2 which is realized according to the firstalternative embodiment. Here it is evident that the cooperating plane 9of the neck 2 is in engagement with the plane 25 of the cap 1. At thesame time the sealing lip 10 has assumed its final position, which meansthat the bottom partial surface 46 of the sealing lip and the sealingtip 48, with pressure, is in contact with the outer wall 32 and with itsgroove 49 of the inner ring 24 in the top part of the cap. In FIG. 7:1also the imagined package 7 is marked and the neck is suitable welded tothe same and this at the bottom surface 45 of the skirt 6.

In the detail view the cap has come to that position where it iscompletely mounted. In this position the upper plane 30 of the cap andits outer edge 29, which is the section of the cap which at first willbe in contact with the upper plane 36 of the neck, has pressed the outerpart 8 downwards and thereby urged this outer section slightly downagainst the package 7. At this changing of position a rotationalmovement occurs at the top section of the neck which means that thesealing lip 10 and its lower partial surface 46 will be moved inwardsand upwards to the center of the package and to a new position where thesealing lip and the contact surfaces will be pressed against the cap andits cooperating part, the outer wall 32 of the ring section 24. In thisposition a contact pressure is obtained between the parts of the cap andthe neck which means that even if the package is influenced, from forinstance variations in temperatures, it still exist a tightness betweencap and neck. Because the sealing lip is inclined with ca. 45°, inrelation to the horizontal plane and also downwards to the cooperatingsealing surface on the cap, the contact pressure which exists betweenthose parts by closed cap will be increased in those cases when theinterior overpressure in the package arises or increases during forinstance the period of storage. Accordingly an enhanced interioroverpressure in the package brings about that the tightness between neckand cap is improved and this thanks to the constructive design of thesealing parts. A main requirement is that even if the pressure or thetemperature is altered in the complete package, the contact pressurethat is provided between the sealing lip 10 and the surface 32, incooperation with the fixation which exists in the upper part of the neckbetween the construction details and in that case foremost the heel 38and the recess 39 provided on the neck and the cap, secure that thecooperating surfaces will not be displaced in relation to each other.

FIG. 8 shows the cooperation between the caps 1, realized according tothe third alternative embodiment—see FIG. 3—and the neck 2, realizedaccording to the second alternative embodiment—see FIG. 5.

In FIG. 8:1 the cap is only mounted to a position where the ring section24 is come down to the lip 10 of the neck 2. The length of the lip isselected in a way that it by its continuing mounting of the cap—see FIG.8:2—will be pressed down in direction to the package. By selectingapproved connections between requirements of tightness and dimensions ofthe cooperating parts—in the first place the length of the lip 10 andthe distance to and the length of the inner ring section 24—asatisfactory tightness is obtained also in that case when the cap isn'tmounted to its final position. Already when the lip 10 has began toengage the outer wall 32 a fully tightness is obtained, i.e. the packagehas already in this mounting position a fluid tightness, which is anadvantage. The cap can after that be moved—be threaded additional0.5-1.0 turns—down to the final mounting position according to FIG. 8:2.

FIG. 9 shows the cooperation between the cap 1 realized according to thethird alternative embodiment=FIG. 3 and the neck realized according tothe third alternative embodiment=FIG. 6:3.

In FIG. 9:1 the cap is only mounted to a position where the ring section24 of the cap not yet has get down to the lip 10 at the neck 2. Thelength of the lip is selected in a way that it by the further mountingof the cap will be pressed further downwards to the package. Also inthis case the dimensions of the cooperating parts—the length of the lip10 and the distance to and the length of the inner ring section 24, thelength of the lip 51 as well as the distance to the cooperatingcylindrical section 33—which is crucial for obtaining a fully tightnesswhen the cap is in its final mounting position according to FIG. 9:2.

FIG. 10 shows an additional alternative solution of the cap 1 and inthis case combinated with a neck 2, essentially according to the thirdalternative embodiment, according to FIG. 6:1. Thus the neck has thesame upper section as the one described in connection with FIG. 6:1, butin this case the neck preferably is terminated at the bottom with amounting plate 50 instead of with the skirt section 6 which is anotheralternative. Instead of that the cooperating plane 9 of the neck 2engages the plane 25 of the cap—see FIG. 7:2—the cap is here realizedwith an anti-tamper seal 55 snapping over a resilient lip 56 on the neckand where the lip 56 is situated in a free selected height position inrelation to the upper plane 36 of the neck and coordinated with thedimension of the cap, realized in a way that a lower interior plane 57of the cap snaps in and is locked beneath the resilient lip 56 of theneck 2 when the cap has reached its final mounting position. Theanti-tamper seal preferably can be mounted on free selected combinationof neck and cap respectively, in the case when the neck and the cap andthe cooperating planes 9 and 25 are replaced with the design that isrequired by the anti-tamper seal. An embodiment according to FIG. 10 isonly an example of the alternatives by the scoop of the invention.

In FIG. 10:1 the cap 1 is only mounted to that position where the bothsealing lips 10 and 51 respectively of the neck 2 is in contact with thecap and with its inner ring section 24 and cylindrical section 33respectively. In this position the anti-tamper seal 55 has reached downto the lip 56, but not yet been snapped over the same.

In FIG. 10:2 the cap 1 is mounted to its final position on the neck 2.In this position the anti-tamper seal 55 is snapped over the lip 56 andin this position the lip 56 is resilient pressed outwards to the corner5 of the plane 57 of the anti-tamper seal. In this position the capcannot be dismounted without breaking off the anti-tamper-sealing.

With a design where the anti-tamper seal is located underneath theopening inwards to the package the risks that today exist with someanti-tamper seal are eliminated. The present design brings about thatthe anti-tamper seal, also after it is broken, still is fixed, orremains hanging, on the neck and in that case underneath the lip 56.This means that the anti-tamper seal not falls away from the neck andfor instance falls down into a drinking vessel or into a glass. Withthat the risks which exists by some of the present anti-tamper solutionsis avoided.

The tightness of the cooperating parts of the neck and cap is completelycrucial for the quality of the package with respect to the capability tomaintain a desired cleanness or environment in the package and thisduring a long time, at varying storage temperatures or other varyingouter factors. The whole construction is realized to manage thevariations that occur by the fabrication of components like caps. Thismeans that this new present construction permit that the process window,i.e. the process security, which is dependant of material quality,colors, manufacturing tolerances, process data etc. can be slightlywiden, which means lower manufacturing costs and this with maintainedsecured function in the complete package.

Moreover packages usually require some form of sterilizing after thatthe cap is mounted on the neck. How this is done isn't primary for theconstruction. Important is that the constructive design of the neck orthe cap, which must be realized in a way that the quality of the filledup package always is secured during the whole working life of thepackage.

Depending on which application the closure of the package shall bemounted, there are different requirements of the function. To managethose different requirements the neck and the cap is designed in a waythat for instance different contact pressures between the sealing lipand the neck is obtained. This is possible by varying the measure“a”—see FIG. 4:2 and/or FIG. 5:2—alternative by making the sealing lipvarying stiff and/or varying long.

Additional advantage by the new alternative constructions is that thepackage is reclosable, i.e. that it always gives a fully tightness, atightness which is the same as in the initial phase and this thanks theinterior resilience and the sealing force which always is obtained whenthe cap is mounted on the package.

Also the axial and radial locking which is given by the constructionbetween the cap and the package, gives en totally new function comparedto existing caps.

At the final mounting position of the cap and when the neck is appliedon the package the complete package has a design which gives conditionsfor a complete sterilizing, normally an UV-treatment, and this withoutcausing any blocked parts by the sterilizing treatment. In the finalmounting position also the cooperating planes 9 and 25 are engages,which means that it requires a certain increased starting moment byopening the package. The magnitude of this moment of opening can bechosen according to the requirements provided in the individual case.

COMPONENT LIST

-   1=cap 48=sealing tip-   2=neck 49=groove-   3=thread 50=mounting plate-   4=cylindrical part 51=sealing lip-   6=skirt 52=sealing tip-   7=package 53=section of the radius-   8=outer part 54=underside-   9=plane 55=anti-tamper seal-   10=sealing lip 56=lip-   11=swelling 57=plane-   21=knurled surface 58=corner-   23=locking edge-   24=inner ring section-   25=plane-   26=shoulder-   27=upper plane-   28=interior top surface-   29=outer edge-   30=plane-   31=inner corner-   32=outer wall-   33=cylindrical part-   34=buckle-   35=cylindrical part-   36=upper plane-   37=section of the radius-   38=heel-   39=recess-   40=surface-   42=bottom surface-   43=section of the radius-   44=cylindrical part-   45=bottom interface-   46=bottom partial surface-   47=breaking point

1-14. (canceled)
 15. A device for a package where the packaging closureis build up of a cap, which is mounted on a package neck—henceforthcalled neck—and where the cap and the neck has cooperating sealingelements, one sealing lip at the neck which is pressed againstcooperating surfaces, alternatively the sealing lip in combination withan additional sealing lip and the cap has in its interior a planesnapping in at an exterior plane of the neck and/or that the cap has aanti-tamper seal with an interior plane snapping in under a lip at theneck, and in the upper parts of the cap and the neck there iscooperating sections of the radius who guarantee that the cap and theneck in their final mounting position are fixed to each other in bothaxial and radial direction and wherein the neck preferably is welded tothe package and that the cap is designed in a way that these interiorsurfaces always are entirely sealing separated from areas in the neckand the cap, and by that a package closure is obtained which secure asterile environment in the package.
 16. The device according to claim15, wherein the sealing lip in the upper part of the neck, is directedin to the center of the package and that the sealing lip is pressedagainst a exterior wall of a interior ring section of the cap when thecap is mounted on the neck, and by that a delimitation outwards from thepackage, a partition wall between the interior surfaces of the packageand the remaining exterior surfaces of the cap is obtained.
 17. Thedevice according to claim 15, wherein the cap in its upper part has theinterior ring section with an extension orthogonal to a interior uppersurface and where the ring section has the exterior wall situated on anapproved distance from the cylindrical part located in the upper part ofthe neck and where the distance is variable according to therequirements set by the present application.
 18. The device according toclaim 15, wherein on the exterior wall of the ring section there is agroove which by its position and shape is coordinated with a sealing nibof the cooperating sealing lip, and where the groove and the sealing nibfit together when the cap is finally mounted on the neck and by that animproved tightness and attachment function between the cap and the neckis obtained.
 19. The device according to claim 15, wherein a plane inthe interior upper surface of the cap has an inclination relative thehorizontal plane at preferably 15-30° and with its lowest point at theexterior edge of the plane and this to get a improved sealing functionbetween the lip and the exterior wall of the interior ring section inconnection with that the cap is mounted at its finally position on theneck and that this improved sealing function is obtained because theupper part of the neck, with the cylindrical part with an exterior partwill be turned when the cap firstly is pressing against the exteriorcorner on the part, wherein the sealing lip of the neck will be movedinwards and up to the center of the package and then press harderagainst the cooperating exterior wall of the cap.
 20. The deviceaccording to claim 18, wherein the sealing function between the sealinglip and the cooperating part of the cap is improved when an interiorpositive pressure is developed in the package, since the sealing lip atthese operating cases are influenced by a force aimed to move thesealing lip upwards from the package, but this is prevented by theexterior wall of the cap and, consequently, a improved surface pressureis established between the sealing lip and the exterior wall.
 21. Thedevice according to claim 15, wherein the cap in its upper part has theplane which in its exterior part changes over to an outwardly directedinner section of the radius which in its lower part changes over to analmost cylindrical section extending downwards to the section providedwith internal threads and where the cylindrical section is diametricallycoordinated with the exterior part of the neck, to give a guide into thecap relative the neck and where the section of the radius at the capgives one in axial direction guided fixed, finally mounting position fora cooperating section of the radius at the neck and its part and by thatthe neck and the cap is locked in their upper zone, which guarantee thatthe parts not moves axially in relation to each other and, consequently,this implies that also the sealing lip at the neck is axially locked inrelation to the exterior wall of the cap.
 22. The device according toclaim 15, wherein in the intern plane of the cap there is a recesslocated on an approved distance from an interior corner of the plane andis, according to dimensions and position, coordinated with a heel of theupper part of the neck and this design of the cap and the neck gives theconstruction a retention of the both cooperating parts neck and cap inradial direction, which function is important because this retentionguarantee the contact pressure between the sealing lip and thecooperating exterior wall also in those operating cases when variationsin pressure and temperature appears in the whole package.
 23. The deviceaccording to claim 15 and in an embodiment where the cap and the neck ofthe package both are manufactured according to a second alternative ofembodiment, wherein the sealing lip in the upper part of the neck isdirected into the center of the package and is situated in a top planeof the neck.
 24. The device according to claim 23, wherein the sealinglip is pressed down against the package when the cap is mounted on theneck and this owing to that the inner ring section first bends away thesealing lip and is then displaced downwards and passes the outer end ofthe sealing lip, whereby the sealing nib of the sealing lip comes withforce to be situated in contact with the outer wall of the ring section.25. The device according to claim 23, wherein as soon as the sealing lipwith its sealing nib is in contact with the outer wall of the inner ringsection of the cap a fully tightness is obtained in the package, even ifthe cap isn't mounted in its final position.
 26. The device according toclaim 23, wherein the package is recloseable, i.e. that it always givesa fully tightness, the same tightness as in the initial phase, and thisdue to the interior elasticity provided in the sealing lip which impliesthat the lip cooperates with the inner ring section with pressure. 27.The device according to claim 15 and in an embodiment where the cap andthe neck preferable both are realized according to a third alternativeof embodiment, wherein the first sealing lip in the upper part of theneck is directed inwards to the center of the package and placed in theupper plane of the neck and that there also exists the second sealinglip, placed on the neck and in the same upper plane, but where thesealing lip is directed outwards from the center of the package andwhere the sealing lip is provided with a sealing tip which, when the capis mounted on the neck, will be pressed against the cylindrical sectionof the cap and when a negative pressure is obtained in the package thesealing lip will seal even more tight against the cap and thecylindrical section.
 28. The device for a package where the cap isrealized according to any of the different alternative constructions ofcap and neck, but where the plane of the cap and the plane of the neckwho cooperates with the plane, is replaced with a anti-tamper seal whichin the final position of the cap snaps over the external located lip onthe neck, and when this anti-tamper seal snaps over the lip the internalplane of the anti-tamper seal will lock the cap in axial directionrelative the neck, since the lip in this position is elastic pressedagainst the outer corner at the inner plane of the anti-tamper seal.